工程概況
某通信(xin)生(sheng)產樓(lou)工(gong)程(cheng),建(jian)(jian)(jian)筑(zhu)(zhu)基底面(mian)(mian)積1530.19m2。總(zong)建(jian)(jian)(jian)筑(zhu)(zhu)面(mian)(mian)積為(wei)7058.82m2,其中地(di)上建(jian)(jian)(jian)筑(zhu)(zhu)面(mian)(mian)積為(wei)6843.07m2,地(di)下(xia)建(jian)(jian)(jian)筑(zhu)(zhu)面(mian)(mian)積為(wei)215.75m2;建(jian)(jian)(jian)筑(zhu)(zhu)層(ceng)(ceng)(ceng)數及高度為(wei)地(di)上四(si)層(ceng)(ceng)(ceng),局部(bu)五層(ceng)(ceng)(ceng),地(di)下(xia)局部(bu)一層(ceng)(ceng)(ceng),建(jian)(jian)(jian)筑(zhu)(zhu)檐口高度21.00米;建(jian)(jian)(jian)筑(zhu)(zhu)結構(gou)形式為(wei)框(kuang)架結構(gou);建(jian)(jian)(jian)筑(zhu)(zhu)等級:耐火等級為(wei)一級。本工(gong)程(cheng)共設計14個大型機房(fang),標準層(ceng)(ceng)(ceng)機房(fang)面(mian)(mian)積(長x寬)14.4mx21.6m=311.04m2,每個機房(fang)在施(shi)工(gong)時均劃(hua)分(fen)6個施(shi)工(gong)作(zuo)業段;地(di)面(mian)(mian)工(gong)程(cheng)做法厚度50mm;選用某品(pin)牌瓷質抗靜電(dian)地(di)板(ban)磚,地(di)板(ban)磚規格為(wei)600mmx600mmx10mm,顏色:米黃。
技術準備
筆(bi)者在施(shi)工(gong)之前(qian)與設(she)計(ji)院和(he)防靜(jing)電地(di)(di)(di)板(ban)磚廠家(jia)技術人員充(chong)分交流,溝(gou)通,了解和(he)學習防靜(jing)電地(di)(di)(di)板(ban)磚的施(shi)工(gong)重(zhong)點難(nan)點,編制了專項的抗靜(jing)電地(di)(di)(di)板(ban)磚施(shi)工(gong)方案。并(bing)在施(shi)工(gong)前(qian)進(jin)行(xing)針對性(xing)的技術交底。
瓷質防(fang)靜電地板磚施工控制
(1)清理基層。重點清除(chu)建筑垃(la)圾(ji),混凝(ning)土(tu)浮漿,砂子浮土(tu),清除(chu)油污(wu)。
(2)準(zhun)備(bei)好瓷(ci)質防靜(jing)電地板磚,防靜(jing)電添加劑,接地銅帶(dai)及相關螺絲。
(3)瓷質抗靜(jing)(jing)電(dian)地(di)板(ban)磚(zhuan)地(di)面工程(cheng)由:鋼筋混(hun)凝(ning)土基層、1:4干硬(ying)性水(shui)泥(ni)砂(sha)漿結合層、瓷質防靜(jing)(jing)電(dian)地(di)板(ban)磚(zhuan)面層,防靜(jing)(jing)電(dian)添加劑和防靜(jing)(jing)電(dian)接地(di)系統幾部分組(zu)成。
(4)結(jie)合層采(cai)用(yong)(yong)體積比(bi)為(wei)1:4干硬性水(shui)泥砂漿(jiang)(jiang),由于(yu)施(shi)工場(chang)地限制(zhi),決(jue)定(ding)采(cai)用(yong)(yong)施(shi)工現場(chang)拌(ban)制(zhi)水(shui)泥砂漿(jiang)(jiang),先(xian)摻入重量比(bi)為(wei)1:0.05,即5%的防靜電添加劑,預混干伴制(zhi)3遍,澆水(shui)濕拌(ban)制(zhi)3遍,全(quan)程(cheng)有(you)專職質檢員(yuan)進(jin)行巡查,
(5)在混凝土基層(ceng)上滿涂刷(shua)一遍摻入重量比(bi)為1:0.05防靜電添加(jia)劑的素(su)水(shui)泥漿,鋪(pu)設(she)體(ti)積比(bi)為1:4干硬性水(shui)泥砂漿,鋪(pu)設(she)厚(hou)度40mm,在水(shui)泥砂漿結(jie)合層(ceng)上鋪(pu)設(she)導(dao)電銅帶,縱向間距應采用(yong)(yong)600㎜,橫(heng)向間距600㎜。鋪(pu)設(she)完(wan)成(cheng)后,使其全(quan)部形成(cheng)通(tong)路,專職電氣質(zhi)檢(jian)員用(yong)(yong)萬用(yong)(yong)表檢(jian)測水(shui)泥砂漿結(jie)合層(ceng)上鋪(pu)設(she)的導(dao)電銅帶,并做好(hao)隱蔽工(gong)程驗(yan)收記錄(lu)。
瓷質防(fang)靜電(dian)地板磚施工控制(zhi)要點、施工重點、難點分析如下
施工前需要進行針對性的技術交底
筆者召集項目部(bu)各成(cheng)員(yuan)和(he)相關班組(zu)負責人(ren)施(shi)工(gong)(gong)前(qian)的技術(shu)交(jiao)底會,重點講(jiang)述(shu)施(shi)工(gong)(gong)流程,和(he)相應(ying)管線敷設的配合(he)施(shi)工(gong)(gong)。各專(zhuan)業技術(shu)人(ren)員(yuan)在崗前(qian)進行技術(shu)交(jiao)底復述(shu),加強理(li)解。
瓷質防靜電地板磚維修難
因(yin)建設單位的(de)安裝(zhuang)班(ban)組管理不(bu)到位,導致已經施工(gong)完畢的(de)瓷質(zhi)(zhi)防(fang)靜電地板磚破(po)(po)損,更(geng)換地板磚時遇到了(le)(le)維修(xiu)難(nan)的(de)問題,在剔鑿破(po)(po)損瓷質(zhi)(zhi)防(fang)靜電地板磚時,破(po)(po)壞(huai)了(le)(le)已經勾好的(de)板縫(feng),弄斷了(le)(le)。
地板(ban)磚(zhuan)(zhuan)下的導電銅帶(dai),為此(ci)專門(men)邀(yao)請地板(ban)磚(zhuan)(zhuan)廠(chang)家技術人員(yuan)進行導電銅帶(dai)的斷頭(tou)連(lian)接(jie)。而后(hou)重新鋪設瓷質防靜電地板(ban)磚(zhuan)(zhuan)。
施工現場作業條件差
本(ben)工程(cheng)為(wei)某通信生產(chan)樓(lou)(lou)工程(cheng),樓(lou)(lou)內均(jun)為(wei)各種機房,每(mei)個機房機房均(jun)不設窗(chuang)戶,只設置出入門,采光(guang)(guang)(guang)為(wei)日(ri)光(guang)(guang)(guang)燈(deng),通風(feng)(feng)排風(feng)(feng)有專用送、排風(feng)(feng)管道井。因沒有自然采光(guang)(guang)(guang),長(chang)時間的(de)施工燈(deng)光(guang)(guang)(guang)照射,
致使鋪(pu)裝地(di)板磚的工人產生炫目現象,有2處約(yue)5平(ping)米(mi)的瓷(ci)質防靜電(dian)地(di)板磚平(ping)整度和(he)板縫寬度不合格(ge)而返工。
對(dui)比分析
目前防靜(jing)(jing)電(dian)地(di)(di)板工程(cheng)中常用的是(shi):活動防靜(jing)(jing)電(dian)PVC板,瓷質防靜(jing)(jing)電(dian)地(di)(di)板磚,防靜(jing)(jing)電(dian)橡膠板,防靜(jing)(jing)電(dian)水磨石、全鋼防靜(jing)(jing)電(dian)地(di)(di)板、鋁合金(jin)型防靜(jing)(jing)電(dian)地(di)(di)板等(deng)(deng)等(deng)(deng)。筆者通過對比(bi)分析,總結(jie)出瓷質抗
靜電地板磚的優點如下:
(1)美觀耐(nai)用,防(fang)滑性(xing)好,不受環境影響,整(zheng)體具有永(yong)久、穩定的防(fang)靜電性(xing)能,通過檢測表面電阻:1.0X105Ω~1.0X109Ω,系統電阻:1.0X105Ω~1.0X109Ω。
(2)經(jing)過檢測(ce),瓷質(zhi)防靜電(dian)地(di)板磚屬于A級防火材(cai)料,并且耐熱性(xing)能優良,耐高溫達(da)1200℃導電(dian)性(xing)不變。
(3)環(huan)保節能,無毒、無味、無輻射、是綠色環(huan)保產品。
(4)通過使用對比,瓷(ci)質(zhi)(zhi)抗靜(jing)電地板磚(zhuan)屬于陶(tao)瓷(ci)質(zhi)(zhi)地,耐(nai)(nai)(nai)磨(mo)性(xing)高(gao)、耐(nai)(nai)(nai)腐(fu)蝕好、耐(nai)(nai)(nai)酸耐(nai)(nai)(nai)堿性(xing)能優(you)良、耐(nai)(nai)(nai)油污(wu)好、阻燃性(xing)好、防(fang)滲(shen)透性(xing)能高(gao),瓷(ci)質(zhi)(zhi)抗靜(jing)電地板磚(zhuan)克(ke)服以上防(fang)靜(jing)電材料缺(que)點,兼容(rong)了陶(tao)瓷(ci)墻地磚(zhuan)優(you)點是(shi)其(qi)它材料無法比擬的。
同時,瓷質抗靜電地板磚也有不足之處:
(1)需要濕作業,勞(lao)動強(qiang)度大,對鋪設的工(gong)人要求高,容易空(kong)鼓,施工(gong)驗(yan)收完畢(bi)后維修復(fu)雜。
(2)瓷質(zhi)抗靜電地板磚花色少(shao),選擇余地少(shao),美觀性略(lve)差(cha),
(3)瓷質抗靜電(dian)地板磚(zhuan)地面不利(li)于(yu)大面積敷設線(xian)路。所以本工程(cheng)中的機房強電(dian)線(xian)路、弱電(dian)線(xian)路均設置于(yu)梯架,并(bing)吊頂(ding)設置,距(ju)頂(ding)1000mm。